Automatic brake for talking-machines.



F. CIRELLI.

AUTOMATIC BRAKE FOR TALKING MACHINES.

APPLICATION FILED MAR 22, I816- I Patented Dec. 19,1916.

2 SHEETSSHEET I- I v I II IIIII Ir! II I II I i F. CIRELLI.

AUTOMATIC BRAKE FOR TALKING MACHINES.

APPLICATION FILEDMAR. 22. $915.

'1 08,749. Patented Dec. 19, 1916.

2 SHEETSSHEET 2- I and having a brake shoe 10 at one end UNITED STATESPATENT OFFICE.

FRANCESCO CIRELLL'OF PHILADELPHIA, I'ENNSYLVANIiA.

AUTOMATIC BRAKE FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented Dec. 19, 1916.

Application filed March 22, 1916. Serial No. 85,7 86.

A further object is to provide improve ments of the character statedwhich can be applied to any ordinary type of talking machine, which willbe simple and inexpensive in construction, and strong and durable inuse.

' 'WVith these and other objects in view, the invention consists incertain novel features of construction andcombinations.and arrangementsof parts as will be more fully hereinafter described and pointed out inthe claims.

In the accompanying drawings, Figure 1 is a fragmentary view in sideelevation partly in section illustrating myimprovements Fig. 2 isa viewin section on the line 2-2 ofFig. 1. Fig.3 is a view in section on theline of Fig. 2. Fig. 4 is a viewin section on the line 4--'l of Fig. 1,and Fig- 5 is a view in section on. thc line 55 of Fig. 4.

1 represents the box or support of a talking machine, 2 the turn table,3 the disk recor on the turn. table, 4 the pivoted tone arm,-5 the soundbox, and (3 the needle'engaging the record as is common in machines ofthis character.-

7 represents a. pivoted brake which constitutes a plate pivotallysecured between its ends to a. bracket 8 by means of a bolt 9,

adapted to engage the periphery of the turn table 2. s v

A channel guide 11 is secured byscrews ll'td the top of the box 1, andsupports two bars 13 "and 14, the bar 1 1 being supported on bar 133,and provided with longitudinal slots 15 through which headed-Screws 16project. These screws are fixed to the bar 13, and

their heads project over the u per surface of the bar 14, so that theyhol the bars together, but permit independent sliding movement of thebar 14 as'will be hereinafter explained. I 1

The bar 13 is provided at one end with a vertical pin 17 which projectsthrough an opening 18 in moved by the bar 13. 'A cross pin 19 is securedin the sides of the channel guide 11,

lin1itingthe movement of the pin 17 and bar 13in one direction, and

also facilitating the adjustment of the .bars relative to each other aswill hereinafter appear.

Bar 1 1 is provided with an upwardly projecting lug 20, having ascrew-threaded This screw 22 is mounted to turn in an opening 23 in alug 24: integral with bar 13, and is held against longitudinal movementof the lug 24 by means of a nut screw 22.

25 on one end of the screw, and a knurledhead 26 fixed to the screwatthe opposite side of the lug 24.

The bar 1-1 carries a vertical pin 27 which is adapted to be engaged bya finger 28 on a bracket 29, the latter secured to the tone arm i-byscrews 30 or other approved securing means. i

Finger 28 is preferably covered by a rubber tuhe $51 to prevent toengage the pin 27 and move bars 13 and 14 in a direction to apply thebrake.

In operation, the device is set as follo\vs:-- ll1e needle 6 is' placedon disk at a point adjacent the end of themeoi-d groove. The head 26 isthen turnedto adjust screw 22, and move barldjrelative to bar 13 untilthe pin 27 engages the finger 28 on the tone he started with the needlein the outer groove or starting point of the record, and when the end ofthe record is reached, the

noise, and is adapted v arm 4. The machine can then brake 7, sothat thebrake is opening 21 therein to receive an adjusting the record tone arm4 will move the finger 28 so as to ment of the plate 13 due to anyvibration \\'liicli .might occur. and' furthermore it fa.- cilitates theadjustment in view of the fact that it prevents the slides fromaccidentally moving beyond a prescribed positiomsmce the motion isli'rfiited in one direction by the engagement of the pin 17 with the pin19 and 111 the opposite direction with the upwardly projecting lug 24,so that while the upper bar may be ad usted to the extent of the lengthof the adjusting screw, the lower bar will always be in such position'asto require but little movement to apply the brake.

It will thus be noted that with my improvements the parts wan beadjusted to suit any record, and will initoimitically stop the turntable when the end of the record is reached.

.Yarious slight changes might be made in the general form andarrangement of parts described without departing from my in vention, andhence I do not limit myself to the precise details set forth, butconsider myself at liberty to make such changes and alter-w tions asfairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim new and desire tosecure by Letters Patent is:

1. The combination with a. talking machine having a support, a turntalde, and amovable tone arm, of a bracket, a plate movably carried bythe bracket and including a brake shoe, said brake shoe being adapted toengage said turn table, two bars mounted to slide longitudinally andhaving limited independent movement, means for guiding said bars onewith res 'iect to the other, one of said bars being pivotally connectedto said plate, a member on the other of said bars, means for adjustingthe bars relativelyto each other, and means on the tone arm adapted toengage said member and move the bars longitudinally to apply the brake,substantially as described.

2. In a device of the character described, the combination with asupport, a turn table, and a pivoted tone arm, of a brake, a guideon'the support, two bars mounted to slide in the guide and having arestricted ndependent movement, means for adjusting the bars relative toeach other, a. pin on pne of the bars projecting through an openmg inthe brake, and coupling the parts together, an upwardly projecting pinon the other of said bars, and a. finger on the tone arm adapted toengage the last-mentioned pin and move both bars and the brake in adirection to apply the brake, substantially as described.

3, In a device of the character described, the combination with asupport, a turn table, and a pivoted tone arm, of a bracket on thesupport, a brake pivotally supported between its ends on the bracket andhaving a brake shoe at one end adapted to engage the turn table, andhaving an opening adja cent its other end, two bars mounted to sliderelative to each other, a pin on one of the bars projecting tl'nough theopening in the brake, means for adjusting the bars relative to eachother, a pin on the other of said bars, and a finger on the tone armadapted to engage the last-mentioned pin, substantially as described.

4. In a device oi the character described, the coi'i'ibination with asupport, a turn table, and a pivoted tone arm, of a channel guide on thesupport, two bars mounted to slide in the guide and having slot and. pinconnection, upwardly projecting lugs on the respective bars, a screwa'icunted to turn in one of said lugs and having screw-threadedcngagiui'mnt with the other of said lugs, a head on said screw, anupwardly projecting pin on one of said bars, a finger on the tone armadapted to engage said pin, and a. brake adapted to engage the turntable and operatively connected with one of said bars, substantially asdescribed.

5. In. a device of the character described, the combination with asupport, a turn table, and a pivoted tone arm, of a. channel guide on.the support, two bars mounted to slide in the guide and l'iaving slotand pin connection, upwardly projecting lugs on the respective bars, ascrew mounted to turn in one of said lugs and having screw-threadedengagement with the oth r of said lugs, a head on said screw. an. n},'ard projecting pin on one of said bars, a finger on the tone armadapted to engage said pin, a. pivoted. 'brahe on the support adapted toei'igage the turn table, and haviiig an opening therein, a pin on one ofsaid bars projecting through the opening in the brake, and a cross pinin the guide adapted to be engaged by the last-1nentioned pin and limitthe movement of the brake in one direction, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANCESCO CIRELLI.

Witnesses:

C. R. ZIEGLER, Guns, E. Po'r'rs.

